gecko-dev/gfx/thebes/gfxMacPlatformFontList.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef gfxMacPlatformFontList_H_
#define gfxMacPlatformFontList_H_
#include "nsDataHashtable.h"
#include "nsRefPtrHashtable.h"
#include "gfxPlatformFontList.h"
#include "gfxPlatform.h"
#include "gfxPlatformMac.h"
#include <Carbon/Carbon.h>
#include "nsUnicharUtils.h"
#include "nsTArray.h"
class gfxMacPlatformFontList;
// a single member of a font family (i.e. a single face, such as Times Italic)
class MacOSFontEntry : public gfxFontEntry
{
public:
friend class gfxMacPlatformFontList;
virtual ~MacOSFontEntry() {
::CGFontRelease(mFontRef);
}
virtual CGFontRef GetFontRef() = 0;
virtual nsresult GetFontTable(uint32_t aTableTag,
FallibleTArray<uint8_t>& aBuffer) = 0;
nsresult ReadCMAP();
bool RequiresAATLayout() const { return mRequiresAAT; }
bool IsCFF();
protected:
MacOSFontEntry(const nsAString& aPostscriptName, int32_t aWeight,
gfxFontFamily *aFamily, bool aIsStandardFace = false);
virtual gfxFont* CreateFontInstance(const gfxFontStyle *aFontStyle, bool aNeedsBold);
virtual bool HasFontTable(uint32_t aTableTag) = 0;
CGFontRef mFontRef; // owning reference to the CGFont, released on destruction
bool mFontRefInitialized;
bool mRequiresAAT;
bool mIsCFF;
bool mIsCFFInitialized;
};
// concrete subclasses of MacOSFontEntry: ATSFontEntry for 10.5, CGFontEntry for 10.6+
class ATSFontEntry : public MacOSFontEntry
{
public:
ATSFontEntry(const nsAString& aPostscriptName, int32_t aWeight,
gfxFontFamily *aFamily, bool aIsStandardFace = false);
// for use with data fonts
ATSFontEntry(const nsAString& aPostscriptName, ATSFontRef aFontRef,
uint16_t aWeight, uint16_t aStretch, uint32_t aItalicStyle,
gfxUserFontData *aUserFontData, bool aIsLocal);
ATSFontRef GetATSFontRef();
virtual CGFontRef GetFontRef();
virtual nsresult GetFontTable(uint32_t aTableTag,
FallibleTArray<uint8_t>& aBuffer);
virtual void SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf,
FontListSizes* aSizes) const;
protected:
virtual bool HasFontTable(uint32_t aTableTag);
ATSFontRef mATSFontRef;
bool mATSFontRefInitialized;
};
class CGFontEntry : public MacOSFontEntry
{
public:
CGFontEntry(const nsAString& aPostscriptName, int32_t aWeight,
gfxFontFamily *aFamily, bool aIsStandardFace = false);
// for use with data fonts
CGFontEntry(const nsAString& aPostscriptName, CGFontRef aFontRef,
uint16_t aWeight, uint16_t aStretch, uint32_t aItalicStyle,
bool aIsUserFont, bool aIsLocal);
virtual CGFontRef GetFontRef();
virtual nsresult GetFontTable(uint32_t aTableTag,
FallibleTArray<uint8_t>& aBuffer);
virtual void SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf,
FontListSizes* aSizes) const;
protected:
virtual bool HasFontTable(uint32_t aTableTag);
};
class gfxMacPlatformFontList : public gfxPlatformFontList {
public:
static gfxMacPlatformFontList* PlatformFontList() {
return static_cast<gfxMacPlatformFontList*>(sPlatformFontList);
}
static int32_t AppleWeightToCSSWeight(int32_t aAppleWeight);
virtual gfxFontEntry* GetDefaultFont(const gfxFontStyle* aStyle, bool& aNeedsBold);
virtual bool GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
const nsAString& aFontName);
virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
const uint8_t *aFontData, uint32_t aLength);
void ClearPrefFonts() { mPrefFonts.Clear(); }
static bool UseATSFontEntry() {
return gfxPlatformMac::GetPlatform()->OSXVersion() < MAC_OS_X_VERSION_10_6_HEX;
}
private:
friend class gfxPlatformMac;
gfxMacPlatformFontList();
virtual ~gfxMacPlatformFontList();
// initialize font lists
virtual nsresult InitFontList();
// special case font faces treated as font families (set via prefs)
void InitSingleFaceList();
gfxFontEntry* MakePlatformFontCG(const gfxProxyFontEntry *aProxyEntry,
const uint8_t *aFontData, uint32_t aLength);
gfxFontEntry* MakePlatformFontATS(const gfxProxyFontEntry *aProxyEntry,
const uint8_t *aFontData, uint32_t aLength);
static void ATSNotification(ATSFontNotificationInfoRef aInfo, void* aUserArg);
// search fonts system-wide for a given character, null otherwise
virtual gfxFontEntry* GlobalFontFallback(const uint32_t aCh,
int32_t aRunScript,
const gfxFontStyle* aMatchStyle,
uint32_t& aCmapCount);
virtual bool UsesSystemFallback() { return true; }
// keep track of ATS generation to prevent unneeded updates when loading downloaded fonts
uint32_t mATSGeneration;
enum {
kATSGenerationInitial = -1
};
// default font for use with system-wide font fallback
CTFontRef mDefaultFont;
};
#endif /* gfxMacPlatformFontList_H_ */